A practical treatise on handrailing : showing new and simple methods for finding the pitch of the plank, drawing the moulds, bevelling, jointing-up, and squaring the wreath (1890)
Collings, George · London : Crosby Lockwood and Son · leaf 47
25 THREE CLASSES OF HAIS^DRAILS. and lay them down on each side of a b and b c. This gives the points M, n, o, p, to which the curves of the mould should be drawn. The annexed Fig. q is a facsimile of Fig. 3, Plate IV., without … the elliptic curve. The line parallel to a c through k is the long diameter. m, n, o, p are the points on c k and A K, to which the ellipses should be drawn, and D E is the joint line. Figs. 3 on Plates IV. and V. belong to this class. The third class is represented on Plate III., and this is the…
Hand-railing · Stair building
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922)](https://img.insideoutlibrary.com/img/200/ia-fybriefsynopsiso00cockuoft-19-14.webp)
